| Annotation: |
The project is based on the development of heavyweight and self-compacting concretes based on cementitious composites containing admixtures (blast furnace slag, metakaolin and ground limestone), heavy aggregates (magnetite, barite or mixtures thereof) and superplasticizers. The project will determine the chemical composition of individual concrete components, including the presence of isotopes, heat during the hydration of cementitious composites, optimized grading curve of heavy aggregates and concrete composition so that the examined material has a bulk density more than 3000 kg / m3 and meets the requirements of self-compacting concretes, which means the capability to compact without any compaction force even at very dense reinforcement, without segregation and sedimentation of its constituents as determined by V-funnel and L-form. Short and long-term mechanical and physical properties of the resulting concrete will be investigated. Self-compacting heavyweight concretes have potential applications in nuclear power plants and in areas exposed to long-term nuclear radiation. |
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